mirror of
https://github.com/Legrandin/pycryptodome.git
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166 lines
6.8 KiB
Python
166 lines
6.8 KiB
Python
# -*- coding: utf-8 -*-
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#
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# SelfTest/Util/test_generic.py: Self-test for the Crypto.Random.new() function
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#
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# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
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#
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# ===================================================================
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# The contents of this file are dedicated to the public domain. To
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# the extent that dedication to the public domain is not available,
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# everyone is granted a worldwide, perpetual, royalty-free,
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# non-exclusive license to exercise all rights associated with the
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# contents of this file for any purpose whatsoever.
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# No rights are reserved.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# ===================================================================
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"""Self-test suite for Crypto.Random.new()"""
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import unittest
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from Crypto.Util.py3compat import *
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class SimpleTest(unittest.TestCase):
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def runTest(self):
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"""Crypto.Random.new()"""
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# Import the Random module and try to use it
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from Crypto import Random
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randobj = Random.new()
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x = randobj.read(16)
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y = randobj.read(16)
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self.assertNotEqual(x, y)
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z = Random.get_random_bytes(16)
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self.assertNotEqual(x, z)
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self.assertNotEqual(y, z)
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# Test the Random.random module, which
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# implements a subset of Python's random API
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# Not implemented:
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# seed(), getstate(), setstate(), jumpahead()
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# random(), uniform(), triangular(), betavariate()
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# expovariate(), gammavariate(), gauss(),
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# longnormvariate(), normalvariate(),
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# vonmisesvariate(), paretovariate()
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# weibullvariate()
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# WichmannHill(), whseed(), SystemRandom()
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from Crypto.Random import random
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x = random.getrandbits(16*8)
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y = random.getrandbits(16*8)
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self.assertNotEqual(x, y)
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# Test randrange
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if x>y:
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start = y
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stop = x
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else:
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start = x
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stop = y
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for step in range(1,10):
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x = random.randrange(start,stop,step)
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y = random.randrange(start,stop,step)
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self.assertNotEqual(x, y)
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self.assertEqual(start <= x < stop, True)
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self.assertEqual(start <= y < stop, True)
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self.assertEqual((x - start) % step, 0)
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self.assertEqual((y - start) % step, 0)
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for i in range(10):
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self.assertEqual(random.randrange(1,2), 1)
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self.assertRaises(ValueError, random.randrange, start, start)
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self.assertRaises(ValueError, random.randrange, stop, start, step)
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self.assertRaises(TypeError, random.randrange, start, stop, step, step)
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self.assertRaises(TypeError, random.randrange, start, stop, "1")
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self.assertRaises(TypeError, random.randrange, "1", stop, step)
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self.assertRaises(TypeError, random.randrange, 1, "2", step)
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self.assertRaises(ValueError, random.randrange, start, stop, 0)
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# Test randint
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x = random.randint(start,stop)
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y = random.randint(start,stop)
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self.assertNotEqual(x, y)
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self.assertEqual(start <= x <= stop, True)
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self.assertEqual(start <= y <= stop, True)
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for i in range(10):
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self.assertEqual(random.randint(1,1), 1)
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self.assertRaises(ValueError, random.randint, stop, start)
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self.assertRaises(TypeError, random.randint, start, stop, step)
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self.assertRaises(TypeError, random.randint, "1", stop)
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self.assertRaises(TypeError, random.randint, 1, "2")
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# Test choice
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seq = range(10000)
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x = random.choice(seq)
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y = random.choice(seq)
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self.assertNotEqual(x, y)
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self.assertEqual(x in seq, True)
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self.assertEqual(y in seq, True)
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for i in range(10):
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self.assertEqual(random.choice((1,2,3)) in (1,2,3), True)
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self.assertEqual(random.choice([1,2,3]) in [1,2,3], True)
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if sys.version_info[0] is 3:
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self.assertEqual(random.choice(bytearray(b('123'))) in bytearray(b('123')), True)
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self.assertEqual(1, random.choice([1]))
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self.assertRaises(IndexError, random.choice, [])
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self.assertRaises(TypeError, random.choice, 1)
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# Test shuffle. Lacks random parameter to specify function.
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# Make copies of seq
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seq = range(500)
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x = list(seq)
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y = list(seq)
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random.shuffle(x)
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random.shuffle(y)
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self.assertNotEqual(x, y)
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self.assertEqual(len(seq), len(x))
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self.assertEqual(len(seq), len(y))
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for i in range(len(seq)):
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self.assertEqual(x[i] in seq, True)
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self.assertEqual(y[i] in seq, True)
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self.assertEqual(seq[i] in x, True)
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self.assertEqual(seq[i] in y, True)
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z = [1]
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random.shuffle(z)
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self.assertEqual(z, [1])
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if sys.version_info[0] == 3:
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z = bytearray(b('12'))
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random.shuffle(z)
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self.assertEqual(b('1') in z, True)
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self.assertRaises(TypeError, random.shuffle, b('12'))
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self.assertRaises(TypeError, random.shuffle, 1)
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self.assertRaises(TypeError, random.shuffle, "11")
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self.assertRaises(TypeError, random.shuffle, (1,2))
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# 2to3 wraps a list() around it, alas - but I want to shoot
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# myself in the foot here! :D
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# if sys.version_info[0] == 3:
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# self.assertRaises(TypeError, random.shuffle, range(3))
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# Test sample
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x = random.sample(seq, 20)
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y = random.sample(seq, 20)
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self.assertNotEqual(x, y)
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for i in range(20):
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self.assertEqual(x[i] in seq, True)
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self.assertEqual(y[i] in seq, True)
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z = random.sample([1], 1)
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self.assertEqual(z, [1])
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z = random.sample((1,2,3), 1)
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self.assertEqual(z[0] in (1,2,3), True)
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z = random.sample("123", 1)
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self.assertEqual(z[0] in "123", True)
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z = random.sample(range(3), 1)
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self.assertEqual(z[0] in range(3), True)
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if sys.version_info[0] == 3:
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z = random.sample(b("123"), 1)
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self.assertEqual(z[0] in b("123"), True)
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z = random.sample(bytearray(b("123")), 1)
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self.assertEqual(z[0] in bytearray(b("123")), True)
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self.assertRaises(TypeError, random.sample, 1)
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def get_tests(config={}):
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return [SimpleTest()]
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if __name__ == '__main__':
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suite = lambda: unittest.TestSuite(get_tests())
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unittest.main(defaultTest='suite')
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# vim:set ts=4 sw=4 sts=4 expandtab:
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